no code implementations • 2 Jun 2023 • Haojie Wei, Jun Yuan, Rui Zhang, Yueguo Chen, Gang Wang
In this paper, we propose a highly accurate method for joint estimation of pitch, onset and offset, named JEPOO.
1 code implementation • 9 May 2023 • Runqing Wang, Gang Wang, Jian Sun, Fang Deng, Jie Chen
The complex relationships between operations and machines are represented precisely and concisely, for which a dual-attention network (DAN) comprising several interconnected operation message attention blocks and machine message attention blocks is proposed.
no code implementations • 2 May 2023 • Wenjie Liu, Jian Sun, Gang Wang, Francesco Bullo, Jie Chen
In this work, a data-based formulation for computing the steady-state Kalman gain is proposed based on semi-definite programming (SDP) using some noise-free input-state-output data.
no code implementations • 23 Mar 2023 • Liping Yi, Gang Wang, Xiaoguang Liu, Zhuan Shi, Han Yu
It is a communication and computation-efficient model-heterogeneous FL framework which trains a shared generalized global prediction header with representations extracted by heterogeneous extractors for clients' models at the FL server.
1 code implementation • 12 Mar 2023 • Chen Xu, Sirui Chen, Jun Xu, Weiran Shen, Xiao Zhang, Gang Wang, Zhenghua Dong
In this paper, we proposed an online re-ranking model named Provider Max-min Fairness Re-ranking (P-MMF) to tackle the problem.
no code implementations • 1 Mar 2023 • Gang Wang, Zongyu Zuo, Chaoli Wang
In this paper, we investigate the consensus problem of second-order multiagent systems under directed graphs.
1 code implementation • 15 Feb 2023 • Shihan Liu, Junlin Zha, Jian Sun, Zhuo Li, Gang Wang
This paper proposes an efficient, low-complexity and anchor-free object detector based on the state-of-the-art YOLO framework, which can be implemented in real time on edge computing platforms.
no code implementations • 14 Feb 2023 • Wenjie Liu, Masashi Wakaiki, Jian Sun, Gang Wang, Jie Chen
If, in addition, the transmission protocols at the controller-to-actuator (C-A) and sensor-to-controller (S-C) channels can be adapted, the self-triggered control architecture can be considerably simplified, leveraging a delicate observer-based deadbeat controller to eliminate the need for running the controller in parallel at the encoder side.
no code implementations • 14 Jan 2023 • Jiacheng He, Hongwei Wang, Gang Wang, Shan Zhong, Bei Peng
Outliers and impulsive disturbances often cause heavy-tailed distributions in practical applications, and these will degrade the performance of Gaussian approximation smoothing algorithms.
no code implementations • 14 Jan 2023 • Jiacheng He, Gang Wang, Xuemei Mao, Song Gao, Bei Peng
Distributed Kalman filter approaches based on the maximum correntropy criterion have recently demonstrated superior state estimation performance to that of conventional distributed Kalman filters for wireless sensor networks in the presence of non-Gaussian impulsive noise.
no code implementations • 24 Oct 2022 • Wei Wang, Gang Wang, Chenlong Hu, K. C. Ho
For single ellipse fitting, we formulate a non-convex optimization problem to estimate the kernel bandwidth and center and divide it into two subproblems, each estimating one parameter.
1 code implementation • 28 Sep 2022 • Yan Wang, Yusen Li, Gang Wang, Xiaoguang Liu
In this paper, we propose a CNN-based multi-scale attention network (MAN), which consists of multi-scale large kernel attention (MLKA) and a gated spatial attention unit (GSAU), to improve the performance of convolutional SR networks.
1 code implementation • Conference 2022 • Jin Li, Zhong Ji, Gang Wang, Qiang Wang, Feng Gao
The goal of General Continual Learning (GCL) is to preserve learned knowledge and learn new knowledge with constant memory from an infinite data stream where task boundaries are blurry.
1 code implementation • 9 Sep 2022 • Rajitha de Silva, Grzegorz Cielniak, Gang Wang, Junfeng Gao
A dataset of sugar beet images was created with 43 combinations of 11 field variations found in arable fields.
no code implementations • 22 Aug 2022 • Xin Wang, Jian Sun, Gang Wang, Frank Allgöwer, Jie Chen
The present paper deals with data-driven event-triggered control of a class of unknown discrete-time interconnected systems (a. k. a.
no code implementations • 1 Aug 2022 • Xin Wang, Jian Sun, Gang Wang, Jie Chen
This article deals with model- and data-based consensus control of heterogenous leader-following multi-agent systems (MASs) under an event-triggering transmission scheme.
no code implementations • 18 Jul 2022 • Wenjie Liu, Jian Sun, Gang Wang, Francesco Bullo, Jie Chen
Self-triggered control, a well-documented technique for reducing the communication overhead while ensuring desired system performance, is gaining increasing popularity.
1 code implementation • CVPR 2022 • Sihao Lin, Hongwei Xie, Bing Wang, Kaicheng Yu, Xiaojun Chang, Xiaodan Liang, Gang Wang
To this end, we propose a novel one-to-all spatial matching knowledge distillation approach.
no code implementations • 31 Mar 2022 • Guangyan Zhang, Kaitao Song, Xu Tan, Daxin Tan, Yuzi Yan, Yanqing Liu, Gang Wang, Wei Zhou, Tao Qin, Tan Lee, Sheng Zhao
However, the works apply pre-training with character-based units to enhance the TTS phoneme encoder, which is inconsistent with the TTS fine-tuning that takes phonemes as input.
no code implementations • 28 Mar 2022 • Junjie Fu, Jian Sun, Gang Wang
Extensive experiments demonstrate that our method can not only improve the attack success rates, but also reduces the number of queries compared to other methods.
no code implementations • 23 Mar 2022 • Dong Xing, Chenguang Zhao, Gang Wang
To improve the efficiency of ride-hailing service, accurate prediction of transportation demand is a fundamental challenge.
no code implementations • 16 Feb 2022 • Xin Wang, Julian Berberich, Jian Sun, Gang Wang, Frank Allgöwer, Jie Chen
To this end, we begin by presenting a dynamic event-triggering scheme (ETS) based on periodic sampling, and a discrete-time looped-functional approach, through which a model-based stability condition is derived.
no code implementations • 11 Feb 2022 • Limin Yang, Zhi Chen, Jacopo Cortellazzi, Feargus Pendlebury, Kevin Tu, Fabio Pierazzi, Lorenzo Cavallaro, Gang Wang
Empirically, we show that existing backdoor attacks in malware classifiers are still detectable by recent defenses such as MNTD.
no code implementations • 13 Jan 2022 • Yunfeng Hou, Yunfeng Ji, Gang Wang, Ching-Yen Weng, Qingdu Li
Under the introduced framework, we address the state estimation problem for supervisor synthesis of networked DESs with both communication delays and losses.
no code implementations • 28 Oct 2021 • Wittawat Jitkrittum, Michal Lukasik, Ananda Theertha Suresh, Felix Yu, Gang Wang
In this paper, we study training and inference of neural networks under the MPC setup.
no code implementations • NeurIPS 2021 • Bohan Tang, Yiqi Zhong, Ulrich Neumann, Gang Wang, Ya zhang, Siheng Chen
2) The results of trajectory forecasting benchmarks demonstrate that the CU-based framework steadily helps SOTA systems improve their performances.
no code implementations • 25 Oct 2021 • Wenjie Liu, Jian Sun, Gang Wang, Francesco Bullo, Jie Chen
Finally, a numerical example is given to validate the effectiveness of the proposed control method.
no code implementations • 25 Oct 2021 • Xin Wang, Jian Sun, Julian Berberich, Gang Wang, Frank Allgöwer, Jie Chen
Data-based representations for time-invariant linear systems with known or unknown system input matrices are first developed, along with a novel class of dynamic triggering schemes for sampled-data systems with time delays.
1 code implementation • 25 Oct 2021 • Yanqing Liu, Zhihang Xu, Gang Wang, Kuan Chen, Bohan Li, Xu Tan, Jinzhu Li, Lei He, Sheng Zhao
The goal of this challenge is to synthesize natural and high-quality speech from text, and we approach this goal in two perspectives: The first is to directly model and generate waveform in 48 kHz sampling rate, which brings higher perception quality than previous systems with 16 kHz or 24 kHz sampling rate; The second is to model the variation information in speech through a systematic design, which improves the prosody and naturalness.
1 code implementation • 19 Oct 2021 • Sicen Li, Qinyun Tang, Yiming Pang, Xinmeng Ma, Gang Wang
Model-free deep reinforcement learning (RL) has been successfully applied to challenging continuous control domains.
no code implementations • 1 Oct 2021 • Yunfeng Hou, Qingdu Li, Yunfeng Ji, Gang Wang, Ching-Yen Weng
Thus, techniques for the verification of delay coobservability can be leveraged to verify delay $K$-codiagnosability.
no code implementations • 29 Sep 2021 • Wittawat Jitkrittum, Michal Lukasik, Ananda Theertha Suresh, Felix Yu, Gang Wang
In this paper, we study training and inference of neural networks under the MPC setup.
1 code implementation • 24 Sep 2021 • Zeyuan Chen, Wei zhang, Junchi Yan, Gang Wang, Jianyong Wang
Sequential Recommendation aims to recommend items that a target user will interact with in the near future based on the historically interacted items.
no code implementations • 8 Sep 2021 • Jiacheng He, Gang Wang, Bei Peng, Zhenyu Feng, Kun Zhang
In our study, a novel concept, called generalized error entropy, utilizing the generalized Gaussian density (GGD) function as the kernel function is proposed.
no code implementations • 23 Aug 2021 • Jian Zhao, Gang Wang, Jianan Li, Lei Jin, Nana Fan, Min Wang, Xiaojuan Wang, Ting Yong, Yafeng Deng, Yandong Guo, Shiming Ge, Guodong Guo
The 2nd Anti-UAV Workshop \& Challenge aims to encourage research in developing novel and accurate methods for multi-scale object tracking.
no code implementations • 12 Aug 2021 • Lin Bo, Liang Pang, Gang Wang, Jun Xu, Xiuqiang He, Ji-Rong Wen
Experimental results base on three publicly available benchmarks showed that in both of the implementations, Pre-Rank can respectively outperform the underlying ranking models and achieved state-of-the-art performances.
no code implementations • 1 Jul 2021 • Kai Liu, Yuyang Zhao, Gang Wang, Bei Peng
Cooperative problems under continuous control have always been the focus of multi-agent reinforcement learning.
no code implementations • 25 Jun 2021 • Mingliang Xiong, Qingwen Liu, Gang Wang, Georgios B. Giannakis, Sihai Zhang, Jinkang Zhu, Chuan Huang
Resonant beam communications (RBCom) is capable of providing wide bandwidth when using light as the carrier.
no code implementations • 23 Jun 2021 • Yuanhao Li, Badong Chen, Gang Wang, Natsue Yoshimura, Yasuharu Koike
The aim of this study is to propose a new robust implementation for PLSR.
no code implementations • 22 Jun 2021 • Gang Wang
Therefore, in order to represent logical relations more clearly by the neural network structure and to read out logical relations from it, this paper proposes a novel logical ANN model by designing the new logical neurons and links in demand of logical representation.
no code implementations • 3 Jun 2021 • Hong-Yu Zhou, Chengdi Wang, Haofeng Li, Gang Wang, Shu Zhang, Weimin Li, Yizhou Yu
Semi-Supervised classification and segmentation methods have been widely investigated in medical image analysis.
1 code implementation • 29 Apr 2021 • Fuya Luo, Yunhan Li, Guang Zeng, Peng Peng, Gang Wang, YongJie Li
Furthermore, a new metric is devised to evaluate the geometric consistency in the translation process.
no code implementations • 22 Mar 2021 • Wenjie Liu, Jian Sun, Gang Wang, Francesco Bullo, Jie Chen
When both input and output channels are subject to DoS attacks and quantization, the proposed structure is shown able to decouple the encoding schemes for input, output, and estimated output signals.
no code implementations • 11 Mar 2021 • Yongchao Zhang, Liquan Mei, Gang Wang
We present a residual-based a posteriori error estimator for the hybrid high-order (HHO) method for the Stokes model problem.
Numerical Analysis Numerical Analysis
no code implementations • 12 Feb 2021 • Gang Wang, Ziyi Guo, Xiang Li, Dawei Yin, Shuai Ma
Collaborative filtering has been largely used to advance modern recommender systems to predict user preference.
no code implementations • 11 Jan 2021 • Vladimir N. Litvinenko, Gang Wang
In this paper we present theory of novel micro-bunching instability.
Plasma Physics Accelerator Physics
no code implementations • 22 Dec 2020 • Zehua Sun, Qiuhong Ke, Hossein Rahmani, Mohammed Bennamoun, Gang Wang, Jun Liu
Human Action Recognition (HAR) aims to understand human behavior and assign a label to each action.
no code implementations • 21 Dec 2020 • Donghai Li, Chiara Trovatello, Stefano Dal Conte, Matthias Nuß, Giancarlo Soavi, Gang Wang, Andrea C. Ferrari, Giulio Cerullo, Tobias Brixner
Single-layer transition metal dichalcogenides are at the center of an ever increasing research effort both in terms of fundamental physics and applications.
Mesoscale and Nanoscale Physics Materials Science
no code implementations • NeurIPS 2020 • Gang Wang, Songtao Lu, Georgios Giannakis, Gerald Tesauro, Jian Sun
The present contribution deals with decentralized policy evaluation in multi-agent Markov decision processes using temporal-difference (TD) methods with linear function approximation for scalability.
no code implementations • 26 Oct 2020 • Gang Wang, Qunxi Dong, Jianfeng Wu, Yi Su, Kewei Chen, Qingtang Su, Xiaofeng Zhang, Jinguang Hao, Tao Yao, Li Liu, Caiming Zhang, Richard J Caselli, Eric M Reiman, Yalin Wang
With hippocampal UMIs, the estimated minimum sample sizes needed to detect a 25$\%$ reduction in the mean annual change with 80$\%$ power and two-tailed $P=0. 05$ are 116, 279 and 387 for the longitudinal $A\beta+$ AD, $A\beta+$ mild cognitive impairment (MCI) and $A\beta+$ CU groups, respectively.
no code implementations • 2 Oct 2020 • Yang Bai, Xiaoguang Li, Gang Wang, Chaoliang Zhang, Lifeng Shang, Jun Xu, Zhaowei Wang, Fangshan Wang, Qun Liu
Term-based sparse representations dominate the first-stage text retrieval in industrial applications, due to its advantage in efficiency, interpretability, and exact term matching.
1 code implementation • 29 Sep 2020 • Chenguang Zhao, Xiaorong Hu, Gang Wang
Existing ineffective and inflexible traffic light control at urban intersections can often lead to congestion in traffic flows and cause numerous problems, such as long delay and waste of energy.
1 code implementation • 29 Sep 2020 • Xiaorong Hu, Chenguang Zhao, Gang Wang
Then, the results of traffic flow prediction are used in traffic light control, and the agent combines the predicted results with the observed current traffic conditions to dynamically control the phase and duration of the traffic lights at the intersection.
no code implementations • 29 Aug 2020 • Mohammadhossein Ghahramani, Mengchu Zhou, Gang Wang
We classify these existing methods and present a taxonomy of the related work by discussing their pros and cons.
no code implementations • 7 Jul 2020 • Alireza Sadeghi, Gang Wang, Meng Ma, Georgios B. Giannakis
This robust learning task entails an infinite-dimensional optimization problem, which is challenging.
no code implementations • 19 May 2020 • Alireza Sadeghi, Georgios B. Giannakis, Gang Wang, Fatemeh Sheikholeslami
With the tremendous growth of data traffic over wired and wireless networks along with the increasing number of rich-media applications, caching is envisioned to play a critical role in next-generation networks.
no code implementations • 17 May 2020 • Steve T.K. Jan, Qingying Hao, Tianrui Hu, Jiameng Pu, Sonal Oswal, Gang Wang, Bimal Viswanath
We evaluate this idea and show our method can train a model that outperforms existing methods with only 1% of the labeled data.
no code implementations • 18 Apr 2020 • Mingliang Xiong, Qingwen Liu, Gang Wang, Georgios B. Giannakis, Chuan Huang
Wireless optical communications (WOC) has carriers up to several hundred terahertz, which offers several advantages, such as ultrawide bandwidth and no electromagnetic interference.
no code implementations • ECCV 2020 • Yao Zhou, Guowei Wan, Shenhua Hou, Li Yu, Gang Wang, Xiaofei Rui, Shiyu Song
We present a visual localization framework based on novel deep attention aware features for autonomous driving that achieves centimeter level localization accuracy.
no code implementations • 3 Mar 2020 • Qiuling Yang, Alireza Sadeghi, Gang Wang, Georgios B. Giannakis, Jian Sun
Numerical tests using real load data on the IEEE $118$-bus benchmark system showcase the improved estimation and robustness performance of the proposed scheme compared with several state-of-the-art alternatives.
no code implementations • 28 Feb 2020 • Gang Wang, Wei-Tou Ni, Wen-Biao Han, Shu-Cheng Yang, Xing-Yu Zhong
The precision of sky localization could be improved by around 1 to 3 times comparing to single LISA at a given percentage of sources.
General Relativity and Quantum Cosmology Astrophysics of Galaxies Instrumentation and Methods for Astrophysics
no code implementations • 26 Jan 2020 • Gang Wang
Scene Text Recognition is a challenging problem because of irregular styles and various distortions.
no code implementations • 3 Nov 2019 • Jun Sun, Gang Wang, Georgios B. Giannakis, Qinmin Yang, Zaiyue Yang
Motivated by the emerging use of multi-agent reinforcement learning (MARL) in engineering applications such as networked robotics, swarming drones, and sensor networks, we investigate the policy evaluation problem in a fully decentralized setting, using temporal-difference (TD) learning with linear function approximation to handle large state spaces in practice.
no code implementations • IJCNLP 2019 • Shuai Ma, Gang Wang, Yansong Feng, Jinpeng Huai
Many existing relation extraction (RE) models make decisions globally using integer linear programming (ILP).
no code implementations • 25 Oct 2019 • Qiuling Yang, Alireza Sadeghi, Gang Wang, Georgios B. Giannakis, Jian Sun
Taking a statistical learning viewpoint, the input-output relationship between each grid state and the corresponding optimal reactive power control is parameterized in the present work by a deep neural network, whose unknown weights are learned offline by minimizing the power loss over a number of historical and simulated training pairs.
no code implementations • 10 Sep 2019 • Gang Wang, Bingcong Li, Georgios B. Giannakis
Motivated by the widespread use of temporal-difference (TD-) and Q-learning algorithms in reinforcement learning, this paper studies a class of biased stochastic approximation (SA) procedures under a mild "ergodic-like" assumption on the underlying stochastic noise sequence.
1 code implementation • CVPR 2019 • Henghui Ding, Xudong Jiang, Bing Shuai, Ai Qun Liu, Gang Wang
In this way, the proposed network aggregates the context information of a pixel from its semantic-correlated region instead of a predefined fixed region.
Ranked #16 on
Semantic Segmentation
on COCO-Stuff test
1 code implementation • ICCV 2019 • Henghui Ding, Xudong Jiang, Ai Qun Liu, Nadia Magnenat Thalmann, Gang Wang
Furthermore, we propose a boundary-aware feature propagation (BFP) module to harvest and propagate the local features within their regions isolated by the learned boundaries in the UAG-structured image.
Ranked #36 on
Semantic Segmentation
on Cityscapes test
3 code implementations • 12 May 2019 • Jun Liu, Amir Shahroudy, Mauricio Perez, Gang Wang, Ling-Yu Duan, Alex C. Kot
Research on depth-based human activity analysis achieved outstanding performance and demonstrated the effectiveness of 3D representation for action recognition.
Ranked #5 on
One-Shot 3D Action Recognition
on NTU RGB+D 120
no code implementations • ICCV 2019 • Jiuxiang Gu, Shafiq Joty, Jianfei Cai, Handong Zhao, Xu Yang, Gang Wang
Most of current image captioning models heavily rely on paired image-caption datasets.
1 code implementation • journal 2019 • Bing Shuai, Henghui Ding, Ting Liu, Gang Wang, Xudong Jiang
Furthermore, we introduce a “dense skip” architecture to retain a rich set of low-level information from the pre-trained CNN, which is essential to improve the low-level parsing performance.
no code implementations • 27 Feb 2019 • Alireza Sadeghi, Gang Wang, Georgios B. Giannakis
To handle the large continuous state space, a scalable deep reinforcement learning approach is pursued.
no code implementations • 19 Feb 2019 • Yafei Song, Yonghong Tian, Gang Wang, Mingyang Li
To tackle this problem, we resort to the motion flow between adjacent maps, as motion flow is a powerful tool to process and analyze the dynamic data, which is named optical flow in video processing.
no code implementations • 8 Feb 2019 • Jun Liu, Amir Shahroudy, Gang Wang, Ling-Yu Duan, Alex C. Kot
Since there are significant temporal scale variations in the observed part of the ongoing action at different time steps, a novel window scale selection method is proposed to make our network focus on the performed part of the ongoing action and try to suppress the possible incoming interference from the previous actions at each step.
Ranked #45 on
Skeleton Based Action Recognition
on NTU RGB+D 120
no code implementations • 15 Jan 2019 • Jun Liu, Henghui Ding, Amir Shahroudy, Ling-Yu Duan, Xudong Jiang, Gang Wang, Alex C. Kot
Learning a set of features that are reliable and discriminatively representative of the pose of a hand (or body) part is difficult due to the ambiguities, texture and illumination variation, and self-occlusion in the real application of 3D pose estimation.
no code implementations • 29 Nov 2018 • Jia Chen, Gang Wang, Georgios B. Giannakis
common sources).
3 code implementations • 15 Nov 2018 • Liang Zhang, Gang Wang, Georgios B. Giannakis
To bypass these hurdles, this paper advocates deep neural networks (DNNs) for real-time power system monitoring.
no code implementations • 13 Nov 2018 • Chang Xu, Weiran Huang, Hongwei Wang, Gang Wang, Tie-Yan Liu
In this paper, we propose an improved variant of RNN, Multi-Channel RNN (MC-RNN), to dynamically capture and leverage local semantic structure information.
no code implementations • 6 Oct 2018 • Yiming Wu, Wei Ji, Xi Li, Gang Wang, Jianwei Yin, Fei Wu
As a fundamental and challenging problem in computer vision, hand pose estimation aims to estimate the hand joint locations from depth images.
no code implementations • ECCV 2018 • Chunze Lin, Jiwen Lu, Gang Wang, Jie zhou
In this paper, we propose a graininess-aware deep feature learning method for pedestrian detection.
no code implementations • 14 Aug 2018 • Gang Wang, Georgios B. Giannakis, Jie Chen
In this context, the problem of learning a two-layer ReLU network is approached in a binary classification setting, where the data are linearly separable and a hinge loss criterion is adopted.
no code implementations • IEEE Transactions on Pattern Analysis and Machine Intelligence 2018 • Jian-Fang Hu, Wei-Shi Zheng, Lianyang Ma, Gang Wang, Jian-Huang Lai, Jian-Guo Zhang
Our formulation of soft regression framework 1) overcomes a usual assumption in existing early action prediction systems that the progress level of on-going sequence is given in the testing stage; and 2) presents a theoretical framework to better resolve the ambiguity and uncertainty of subsequences at early performing stage.
Ranked #51 on
Skeleton Based Action Recognition
on NTU RGB+D 120
no code implementations • CVPR 2018 • Lu Zhang, Ju Dai, Huchuan Lu, You He, Gang Wang
In this paper, we propose a novel bi-directional message passing model to integrate multi-level features for salient object detection.
Ranked #2 on
RGB Salient Object Detection
on ISTD
1 code implementation • CVPR 2018 • Xiaoning Zhang, Tiantian Wang, Jinqing Qi, Huchuan Lu, Gang Wang
In this paper, we propose a novel attention guided network which selectively integrates multi-level contextual information in a progressive manner.
Ranked #15 on
RGB Salient Object Detection
on DUTS-TE
no code implementations • CVPR 2018 • Ping Hu, Gang Wang, Xiangfei Kong, Jason Kuen, Yap-Peng Tan
Then, the proposed Cascaded Refinement Network(CRN) takes the coarse segmentation as guidance to generate an accurate segmentation of full resolution.
no code implementations • CVPR 2018 • Yicheng Wang, Zhenzhong Chen, Feng Wu, Gang Wang
In this paper, a novel deep architecture named BraidNet is proposed for person re-identification.
1 code implementation • CVPR 2018 • Henghui Ding, Xudong Jiang, Bing Shuai, Ai Qun Liu, Gang Wang
In this paper, we first propose a novel context contrasted local feature that not only leverages the informative context but also spotlights the local information in contrast to the context.
Ranked #19 on
Semantic Segmentation
on COCO-Stuff test
no code implementations • CVPR 2018 • Jun Liu, Amir Shahroudy, Gang Wang, Ling-Yu Duan, Alex C. Kot
As there are significant temporal scale variations of the observed part of the ongoing action at different progress levels, we propose a novel window scale selection scheme to make our network focus on the performed part of the ongoing action and try to suppress the noise from the previous actions at each time step.
no code implementations • 15 May 2018 • Jia Chen, Gang Wang, Georgios B. Giannakis
Under certain conditions, dPCA is proved to be least-squares optimal in recovering the component vector unique to the target data relative to background data.
no code implementations • 27 Mar 2018 • Jia Chen, Gang Wang, Yanning Shen, Georgios B. Giannakis
Canonical correlation analysis (CCA) is a powerful technique for discovering whether or not hidden sources are commonly present in two (or more) datasets.
no code implementations • CVPR 2018 • Jianlou Si, Honggang Zhang, Chun-Guang Li, Jason Kuen, Xiangfei Kong, Alex C. Kot, Gang Wang
Typical person re-identification (ReID) methods usually describe each pedestrian with a single feature vector and match them in a task-specific metric space.
no code implementations • ECCV 2018 • Jiuxiang Gu, Shafiq Joty, Jianfei Cai, Gang Wang
Image captioning is a multimodal task involving computer vision and natural language processing, where the goal is to learn a mapping from the image to its natural language description.
no code implementations • 13 Mar 2018 • Abrar H. Abdulnabi, Bing Shuai, Zhen Zuo, Lap-Pui Chau, Gang Wang
This paper proposes a new method called Multimodal RNNs for RGB-D scene semantic segmentation.
1 code implementation • CVPR 2018 • Jason Kuen, Xiangfei Kong, Zhe Lin, Gang Wang, Jianxiong Yin, Simon See, Yap-Peng Tan
We propose a novel approach for cost-adjustable inference in CNNs - Stochastic Downsampling Point (SDPoint).
no code implementations • 6 Jan 2018 • Li Wang, Ting Liu, Bing Wang, Xulei Yang, Gang Wang
First, we learn RNN parameters to discriminate between the target object and background in the first frame of a test sequence.
no code implementations • NeurIPS 2017 • Gang Wang, Georgios Giannakis, Yousef Saad, Jie Chen
For certain random measurement models, the proposed procedure returns the true solution $\bm{x}$ with high probability in time proportional to reading the data $\{(\bm{a}_i;y_i)\}_{1\le i \le m}$, provided that the number $m$ of equations is some constant $c>0$ times the number $n$ of unknowns, that is, $m\ge cn$.
no code implementations • CVPR 2018 • Jiuxiang Gu, Jianfei Cai, Shafiq Joty, Li Niu, Gang Wang
Textual-visual cross-modal retrieval has been a hot research topic in both computer vision and natural language processing communities.
no code implementations • 25 Oct 2017 • Gang Wang, Jia Chen, Georgios B. Giannakis
Principal component analysis (PCA) has well-documented merits for data extraction and dimensionality reduction.
no code implementations • ICCV 2017 • Gang Wang, Carlos Lopez-Molina, Bernard De Baets
Blob detection and image denoising are fundamental, and sometimes related, tasks in computer vision.
1 code implementation • 11 Sep 2017 • Jiuxiang Gu, Jianfei Cai, Gang Wang, Tsuhan Chen
On the other hand, multi-stage image caption model is hard to train due to the vanishing gradient problem.
no code implementations • 2 Aug 2017 • Gang Wang
Inhibitory links inhibit the connected exciting links conditionally to make this neural network model represent logical relations correctly.
no code implementations • 28 Jul 2017 • Gang Wang, Wei-Tou Ni
In this paper, we follow the same procedure to simulate the time delay interferometry numerically for the new LISA mission and the TAIJI mission together with LISA-like missions of arm length 1, 2, 4, 5 and 6 Gm.
Instrumentation and Methods for Astrophysics General Relativity and Quantum Cosmology
no code implementations • 18 Jul 2017 • Jun Liu, Gang Wang, Ling-Yu Duan, Kamila Abdiyeva, Alex C. Kot
In this paper, we propose a new class of LSTM network, Global Context-Aware Attention LSTM (GCA-LSTM), for skeleton based action recognition.
Ranked #43 on
Skeleton Based Action Recognition
on NTU RGB+D 120
no code implementations • 18 Jul 2017 • Abrar H. Abdulnabi, Stefan Winkler, Gang Wang
However, during inference the lower layers do not know about high layer features, although they contain contextual high semantics that benefit low layers to adaptively extract informative features for later layers.
no code implementations • CVPR 2017 • Ping Hu, Bing Shuai, Jun Liu, Gang Wang
Our method drives the network to learn a Level Set function for salient objects so it can output more accurate boundaries and compact saliency.
no code implementations • CVPR 2017 • Jun Liu, Gang Wang, Ping Hu, Ling-Yu Duan, Alex C. Kot
Hence we propose a new class of LSTM network, Global Context-Aware Attention LSTM (GCA-LSTM), for 3D action recognition, which is able to selectively focus on the informative joints in the action sequence with the assistance of global contextual information.
Ranked #7 on
One-Shot 3D Action Recognition
on NTU RGB+D 120
no code implementations • CVPR 2017 • Abrar H. Abdulnabi, Bing Shuai, Stefan Winkler, Gang Wang
Scene labeling can be seen as a sequence-sequence prediction task (pixels-labels), and it is quite important to leverage relevant context to enhance the performance of pixel classification.
no code implementations • 26 Jun 2017 • Jun Liu, Amir Shahroudy, Dong Xu, Alex C. Kot, Gang Wang
Skeleton-based human action recognition has attracted a lot of research attention during the past few years.
Ranked #6 on
One-Shot 3D Action Recognition
on NTU RGB+D 120
no code implementations • 31 May 2017 • Chang Xu, Tao Qin, Gang Wang, Tie-Yan Liu
Stochastic gradient descent (SGD), which updates the model parameters by adding a local gradient times a learning rate at each step, is widely used in model training of machine learning algorithms such as neural networks.
no code implementations • 29 May 2017 • Gang Wang, Georgios B. Giannakis, Yousef Saad, Jie Chen
This paper deals with finding an $n$-dimensional solution $x$ to a system of quadratic equations of the form $y_i=|\langle{a}_i, x\rangle|^2$ for $1\le i \le m$, which is also known as phase retrieval and is NP-hard in general.
no code implementations • 3 Mar 2017 • Steve T. K. Jan, Chun Wang, Qing Zhang, Gang Wang
Community-based question answering (CQA) services are facing key challenges to motivate domain experts to provide timely answers.
no code implementations • 27 Dec 2016 • Liang Zhang, Gang Wang, Daniel Romero, Georgios B. Giannakis
To circumvent the limitations of existing methods, the present work develops step sizes for RB-FW that enable a flexible selection of the number of blocks to update per iteration while ensuring convergence and feasibility of the iterates.
2 code implementations • ICCV 2017 • Jiuxiang Gu, Gang Wang, Jianfei Cai, Tsuhan Chen
Language Models based on recurrent neural networks have dominated recent image caption generation tasks.
no code implementations • NeurIPS 2016 • Gang Wang, Georgios Giannakis
This paper puts forth a novel algorithm, termed \emph{truncated generalized gradient flow} (TGGF), to solve for $\bm{x}\in\mathbb{R}^n/\mathbb{C}^n$ a system of $m$ quadratic equations $y_i=|\langle\bm{a}_i,\bm{x}\rangle|^2$, $i=1, 2,\ldots, m$, which even for $\left\{\bm{a}_i\in\mathbb{R}^n/\mathbb{C}^n\right\}_{i=1}^m$ random is known to be \emph{NP-hard} in general.
no code implementations • 28 Nov 2016 • Bing Shuai, Ting Liu, Gang Wang
In addition, dense skip connections are added so that the context network can be effectively optimized.
1 code implementation • 23 Nov 2016 • Gang Wang, Liang Zhang, Georgios B. Giannakis, Mehmet Akcakaya, Jie Chen
Upon formulating sparse PR as an amplitude-based nonconvex optimization task, SPARTA works iteratively in two stages: In stage one, the support of the underlying sparse signal is recovered using an analytically well-justified rule, and subsequently, a sparse orthogonality-promoting initialization is obtained via power iterations restricted on the support; and, in the second stage, the initialization is successively refined by means of hard thresholding based gradient-type iterations.
Information Theory Information Theory Optimization and Control
1 code implementation • 17 Nov 2016 • Jason Kuen, Xiangfei Kong, Gang Wang, Yap-Peng Tan
Deluge Networks (DelugeNets) are deep neural networks which efficiently facilitate massive cross-layer information inflows from preceding layers to succeeding layers.
no code implementations • 29 Oct 2016 • Gang Wang, Georgios B. Giannakis, Jie Chen
A novel approach termed \emph{stochastic truncated amplitude flow} (STAF) is developed to reconstruct an unknown $n$-dimensional real-/complex-valued signal $\bm{x}$ from $m$ `phaseless' quadratic equations of the form $\psi_i=|\langle\bm{a}_i,\bm{x}\rangle|$.
no code implementations • 27 Sep 2016 • Lantian Li, Renyu Wang, Gang Wang, Caixia Wang, Thomas Fang Zheng
In this paper, we propose a decision making approach based on multiple scores derived from a set of cohort GMMs (cohort scores).
no code implementations • 3 Aug 2016 • Jinghua Wang, Zhenhua Wang, DaCheng Tao, Simon See, Gang Wang
In this paper, we tackle the problem of RGB-D semantic segmentation of indoor images.
no code implementations • European Conference on Computer Vision 2016 • Rahul Rama Varior, Bing Shuai, Jiwen Lu, Dong Xu, Gang Wang
Matching pedestrians across multiple camera views known as human re-identification (re-identification) is a challenging problem in visual surveillance.
no code implementations • 28 Jul 2016 • Rahul Rama Varior, Mrinal Haloi, Gang Wang
However, current networks extract fixed representations for each image regardless of other images which are paired with it and the comparison with other images is done only at the final level.
Ranked #108 on
Person Re-Identification
on Market-1501
no code implementations • 24 Jul 2016 • Jun Liu, Amir Shahroudy, Dong Xu, Gang Wang
To handle the noise and occlusion in 3D skeleton data, we introduce new gating mechanism within LSTM to learn the reliability of the sequential input data and accordingly adjust its effect on updating the long-term context information stored in the memory cell.
Ranked #8 on
Skeleton Based Action Recognition
on SBU
no code implementations • CVPR 2016 • Gang Wang, Zhicheng Wang, Yufei Chen, Qiangqiang Zhou, Weidong Zhao
Point set registration (PSR) is a fundamental problem in computer vision and pattern recognition, and it has been successfully applied to many applications.
no code implementations • 26 May 2016 • Gang Wang, Georgios B. Giannakis, Yonina C. Eldar
This paper presents a new algorithm, termed \emph{truncated amplitude flow} (TAF), to recover an unknown vector $\bm{x}$ from a system of quadratic equations of the form $y_i=|\langle\bm{a}_i,\bm{x}\rangle|^2$, where $\bm{a}_i$'s are given random measurement vectors.
no code implementations • 15 May 2016 • Bing Wang, Li Wang, Bing Shuai, Zhen Zuo, Ting Liu, Kap Luk Chan, Gang Wang
Then the Siamese CNN and temporally constrained metrics are jointly learned online to construct the appearance-based tracklet affinity models.
no code implementations • 20 Apr 2016 • Bing Shuai, Zhen Zuo, Gang Wang, Bing Wang
The local beliefs of pixels are output by CNN-Ensemble.
no code implementations • CVPR 2016 • Jason Kuen, Zhenhua Wang, Gang Wang
Convolutional-deconvolution networks can be adopted to perform end-to-end saliency detection.
1 code implementation • CVPR 2016 • Amir Shahroudy, Jun Liu, Tian-Tsong Ng, Gang Wang
Recent approaches in depth-based human activity analysis achieved outstanding performance and proved the effectiveness of 3D representation for classification of action classes.
no code implementations • 23 Mar 2016 • Amir Shahroudy, Tian-Tsong Ng, Yihong Gong, Gang Wang
Single modality action recognition on RGB or depth sequences has been extensively explored recently.
no code implementations • 4 Jan 2016 • Abrar H. Abdulnabi, Gang Wang, Jiwen Lu, Kui Jia
Each CNN will generate attribute-specific feature representations, and then we apply multi-task learning on the features to predict their attributes.
no code implementations • 22 Dec 2015 • Jiuxiang Gu, Zhenhua Wang, Jason Kuen, Lianyang Ma, Amir Shahroudy, Bing Shuai, Ting Liu, Xingxing Wang, Li Wang, Gang Wang, Jianfei Cai, Tsuhan Chen
In the last few years, deep learning has led to very good performance on a variety of problems, such as visual recognition, speech recognition and natural language processing.
no code implementations • 30 Nov 2015 • Rahul Rama Varior, Gang Wang
This paper addresses the problem of matching pedestrians across multiple camera views, known as person re-identification.
no code implementations • 25 Nov 2015 • Li Wang, Ting Liu, Gang Wang, Kap Luk Chan, Qingxiong Yang
The adaptation is conducted in both layers of the deep feature learning module so as to include appearance information of the specific target object.
no code implementations • 20 Nov 2015 • Bing Wang, Gang Wang, Kap Luk Chan, Li Wang
In this paper, we present a novel method based on online target-specific metric learning and coherent dynamics estimation for tracklet (track fragment) association by network flow optimization in long-term multi-person tracking.
no code implementations • 17 Nov 2015 • Jinghua Wang, Gang Wang
Recognizing actions from still images is popularly studied recently.
no code implementations • 17 Nov 2015 • Jinghua Wang, Abrar Abdul Nabi, Gang Wang, Chengde Wan, Tian-Tsong Ng
Given attributes as representations, we propose to learn a ranking SPN (sum product networks) to rank pairs of fashion images.
no code implementations • 14 Nov 2015 • Zhenhua Wang, Xingxing Wang, Gang Wang
The key idea is to build a tree structure that could progressively learn fine-grained features to distinguish a subset of classes, by learning features only among these classes.
1 code implementation • 9 Nov 2015 • Zhouhan Lin, Yushi Chen, Xing Zhao, Gang Wang
Hyperspectral image (HSI) classification is a hot topic in the remote sensing community.
no code implementations • 13 Sep 2015 • Zhen Zuo, Bing Shuai, Gang Wang, Xiao Liu, Xingxing Wang, Bing Wang
In this manuscript, we integrate CNNs with HRNNs, and develop end-to-end convolutional hierarchical recurrent neural networks (C-HRNNs).
no code implementations • CVPR 2016 • Bing Shuai, Zhen Zuo, Gang Wang, Bing Wang
In image labeling, local representations for image units are usually generated from their surrounding image patches, thus long-range contextual information is not effectively encoded.
Ranked #21 on
Semantic Segmentation
on COCO-Stuff test
no code implementations • 21 Aug 2015 • Zhen Zuo, Gang Wang, Bing Shuai, Lifan Zhao, Qingxiong Yang
In order to encode the class correlation and class specific information in image representation, we propose a new local feature learning approach named Deep Discriminative and Shareable Feature Learning (DDSFL).
no code implementations • 31 Jul 2015 • Amir Shahroudy, Gang Wang, Tian-Tsong Ng, Qingxiong Yang
We propose a joint sparse regression based learning method which utilizes the structured sparsity to model each action as a combination of multimodal features from a sparse set of body parts.
no code implementations • CVPR 2015 • Bing Shuai, Gang Wang, Zhen Zuo, Bing Wang, Lifan Zhao
We adopt Convolutional Neural Networks (CNN) as our parametric model to learn discriminative features and classifiers for local patch classification.
no code implementations • CVPR 2015 • Venice Erin Liong, Jiwen Lu, Gang Wang, Pierre Moulin, Jie zhou
In this paper, we propose a new deep hashing (DH) approach to learn compact binary codes for large scale visual search.
no code implementations • CVPR 2015 • Ting Liu, Gang Wang, Qingxiong Yang
However, the conventional correlation filter based trackers cannot deal with occlusion.
no code implementations • CVPR 2015 • Jiwen Lu, Gang Wang, Weihong Deng, Pierre Moulin, Jie zhou
In this paper, we propose a multi-manifold deep metric learning (MMDML) method for image set classification, which aims to recognize an object of interest from a set of image instances captured from varying viewpoints or under varying illuminations.
no code implementations • 4 Oct 2014 • Rahul Rama Varior, Gang Wang, Jiwen Lu
We model color feature generation as a learning problem by jointly learning a linear transformation and a dictionary to encode pixel values.
no code implementations • CVPR 2014 • Bing Wang, Gang Wang, Kap Luk Chan, Li Wang
In our method, target-specific similarity metrics are learned, which give rise to the appearance-based models used in the tracklet affinity estimation.
no code implementations • CVPR 2014 • Lin Sun, Kui Jia, Tsung-Han Chan, Yuqiang Fang, Gang Wang, Shuicheng Yan
In this paper, we propose to combine SFA with deep learning techniques to learn hierarchical representations from the video data itself.
no code implementations • 31 Mar 2014 • Kui Jia, Tsung-Han Chan, Zinan Zeng, Shenghua Gao, Gang Wang, Tianzhu Zhang, Yi Ma
The task is to identify the inlier features and establish their consistent correspondences across the image set.